The Story of Matcha: From Leaf to Whisked Cup (the 800-Year-Old Method)

Matcha is a green tea, but it's a very different kind of green tea. Most green tea is brewed by steeping the leaves in water and discarding them. Matcha is brewed by grinding the leaves into a fine powder and whisking the powder into the water. You drink the leaves themselves.

This sounds small, but the difference changes almost everything — how the tea is grown, how it's processed, how it's brewed, and what it tastes like. Matcha is also where green tea gets its most distinctive flavor: a deep, savory, almost brothy character that you don't get from sencha or gyokuro or any leaf-style green tea.

This is how matcha is grown, processed, and brewed. It's also why the production method — the 800-year-old method — still matters, even in a coffee shop era where matcha is now an Instagram staple.

Where matcha came from

Matcha is Japanese, but its origins are Chinese. In the 9th century, a Chinese Buddhist monk named Eisai brought tea seeds from China to Japan and planted them in Kyoto. Eisai wrote the first Japanese book about tea, and he popularized the practice of drinking powdered green tea as part of Buddhist ritual. He also planted tea in a specific way — under shade — to make the leaves sweeter and more concentrated.

The Chinese original was different from what we now call matcha. The Chinese method involved pressing the tea into bricks, then breaking off pieces and grinding them. The Japanese method refined this into the production process we still use today.

By the 12th century, matcha had become central to Japanese tea ceremony — a formalized, ritualized way of preparing and drinking tea that combined Buddhist meditation, hospitality, and aesthetic appreciation. The most famous form of this is the Japanese tea ceremony, or chanoyu, which uses matcha whisked in a chawan (tea bowl) with a bamboo whisk (chasen).

For 700 years, matcha was an exclusively Japanese product. It was expensive, ceremonial, and associated with the upper classes. It only became a global product in the last 20 years, as Japanese tea culture spread and as specialty coffee shops began offering matcha lattes.

How matcha is grown

The key step in matcha production is shading. About 3–4 weeks before harvest, the tea bushes are covered with bamboo shades or black cloth. The shading blocks 80–90% of the sunlight.

This does two things:

1. The plant produces more chlorophyll and L-theanine. L-theanine is an amino acid that gives matcha its savory, brothy flavor and a calm-focus feeling (it's the same compound that's in regular green tea, but in much higher concentrations in matcha). Shading increases L-theanine by 2–3x compared to sun-grown green tea.

1. The plant produces less catechins. Catechins are the bitter, astringent compounds in tea. Shading reduces them. The result is a sweeter, less bitter leaf.

The combination — more L-theanine, less catechin — is what makes matcha taste the way it does. Sun-grown green tea is grassier and more astringent. Shade-grown green tea is sweeter, more savory, and less bitter.

Matcha also uses specific tea cultivars. The most common is Yabukita, which accounts for about 75% of Japanese tea production. Other cultivars — like Saemidori, Okumidori, and Samidori — are prized for matcha because they produce even more L-theanine and less catechin. Premium matchas often use these cultivars.

How to grow matcha at home

If you have a garden and want to grow your own matcha, it's possible but not easy:

• Plant a Camellia sinensis variety suited to your climate. Yabukita is the standard but only hardy to zone 7. In colder zones, look for cold-hardy cultivars.
• Shade the plants for 3–4 weeks before harvest. You can use shade cloth or a purpose-built structure. The shading step is what makes the leaf a matcha-grade leaf.
• Harvest the youngest leaves. The first flush (spring leaves) are the highest quality. Pick the top two leaves and the bud.
• Steam the leaves immediately after harvest. Steam for 30–60 seconds to halt oxidation. This is what makes Japanese green tea "green" — the steaming preserves the green color.
• Dry the leaves. Traditionally, this is done in a stone mill or a heated pan. Modern producers use mechanical dryers.
• Grind the dried leaves into powder. This is the hard part. Traditional granite stone mills produce the finest powder (10–15 microns per particle). Home spice grinders produce a coarser powder (50–100 microns) which doesn't whisk as smoothly.

Most home growers don't grind their own leaves. They buy pre-ground matcha. The grinding step is the most specialized part of production and is hard to replicate at home.

How to process matcha at scale

For a producer, the steps look like this:

1. Grow the tea under shade for the final 3–4 weeks.
2. Harvest the first flush (spring) by hand. Mechanical harvesters are used for lower-grade matcha.
3. Steam the leaves immediately to halt oxidation. Steaming time varies: 30 seconds for premium matcha, longer for more standard grades.
4. Dry the leaves. Modern producers use mechanical dryers, but traditional producers still dry the leaves by hand on paper.
5. Cut and sort the dried leaves, removing stems and veins.
6. Grind in a granite stone mill. Stone mills turn slowly enough not to heat the leaves (heat would damage the color and flavor). A single stone mill produces about 40 grams of matcha per hour. This is the bottleneck in matcha production.

The grading system for matcha varies. The most common is:

• Ceremonial grade. Made from the youngest leaves, ground extra fine, bright green, sweet and savory. Used in traditional tea ceremony.
• Premium grade. Made from the first flush but slightly older leaves, bright green, slightly more bitter than ceremonial. Used in high-quality matcha lattes.
• Culinary grade. Made from later flushes or older leaves, less bright, more bitter. Used in cooking and baking, where the flavor is masked by other ingredients.

The grades are not regulated by any official body. They're conventions, and they vary by producer. A "ceremonial grade" from one producer might be similar to a "premium grade" from another.

How to brew matcha

The traditional method is simple:

• Sift 2 grams (about 1 teaspoon) of matcha into a chawan or small bowl. Sifting prevents clumps.
• Add 80–100 ml of water at 175°F (just below boiling).
• Whisk vigorously with a bamboo chasen, in a "W" or "M" pattern, until the matcha is fully dissolved and a fine foam forms on the surface. This takes about 15–20 seconds.
• Drink immediately. Matcha oxidizes quickly. A cup that's sat for 10 minutes will taste different than a fresh cup.

For matcha lattes, the same method works — sift, whisk with a small amount of hot water to make a paste, then add steamed milk. Most coffee shops use an electric milk frother instead of a chasen, which produces a thicker foam but doesn't dissolve the matcha as completely.

What good matcha tastes like

A well-made ceremonial matcha should taste:

• Savory. Like a broth or a soup. This is the L-theanine.
• Slightly sweet. Natural sweetness from the shading, not from sugar.
• Astringent but not bitter. Some astringency is normal. Bitterness is a sign of bad matcha or bad brewing.
• Smooth. No grit. The powder should be fine enough to dissolve fully.
• Lingering finish. The flavor should sit on the palate for 30–60 seconds after swallowing.

Bad matcha tastes: grassy, bitter, thin, or astringent. Most of these come from low-grade leaf or wrong brewing.

The matcha industry today

Matcha is having a moment. Global demand has surged in the last 10 years, driven by coffee shop culture and the wellness industry. Prices have gone up. Supply has not kept pace. Most of the world's matcha still comes from Japan, and Japanese tea production has been declining for decades as older farmers retire and fewer young people take up tea farming.

The result: a matcha shortage that's been getting worse every year. Prices for ceremonial-grade matcha have roughly doubled in the last 5 years. Some producers have stopped accepting new wholesale customers because they can't meet existing demand.

For our own sourcing, we work with one Japanese importer who has long-term relationships with a few Uji-based producers. We buy what we can, and we don't always have it in stock. When we do, we sell it.

The takeaway

Matcha is a specific kind of green tea that's grown under shade, ground into powder, and whisked into water. The shading step is what gives it the savory-sweet character that distinguishes it from sencha or gyokuro. The grinding step is what makes it possible to drink the leaves themselves, instead of brewing them and discarding them.

If you've only had matcha in a sweetened, milk-heavy latte, try it brewed traditionally — water at 175°F, whisked in a chawan, no milk or sugar. That's where the flavor is.

— Seraphina, Cozy Sips

Curious about other Japanese green teas? Our sencha brewing guide walks through how to brew sencha at home — including the hot-brew method that's faster than cold-brewing.